Bulk bin



FIG. 1 is a perspective view of a bulk bin, embodying my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a side elevational view thereof, the opposite side elevational view being a mirror image thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a front elevational view thereof.

The broken lines shown in the figures are for illustrative purposes only, and form no part of the claimed invention. 

The ornamental design for a bulk bin, as shown and described. 